Stapler



FIG. 1 is a perspective view of a stapler embodying the present invention.

FIG. 2 is side view of the stapler.

FIG. 3 is a top view of the stapler.

FIG. 4 is a front view of the stapler; and,

FIG. 5 is a rear view of the stapler.

The portions of the stapler in broken lines are shown as environment or for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a stapler, as shown and described. 